I have create gift card product types and add custom options like this
- Choose Amount:Card value
- select a design:
compose your email :
To : Recipient Name Recipient Email Form : Sender Name Sender Email
- Date to send:
- Time Zone
I added product into add to cart But, product is not update
mini cart and
checkout/cart page display error like this :
Exception #0 (InvalidArgumentException): Unable to unserialize value. #0 vendor/magento/module-catalog/Helper/Product/Configuration.php(118): Magento\Framework \Serialize\Serializer\Json->unserialize.
How to solve this type issue?
I tried the answers from "Magento 2.2 error: Unable to unserialize value" but this is not working.